Search found 8965 matches

by Paul Barker
Tue Apr 09, 2024 5:24 pm
Forum: Everyones Projects
Topic: EL34 SE
Replies: 6
Views: 282

Re: EL34 SE

A lot simpler I already bought a 50 watt 20v secondary. 2.7v change per primary volt a 20v additional primary will deduct 54 volts from the supply on the safer side that’ll do. If I needed a bias supply Ive got one on the other secondary. In this case I am using so little voltage its not necessary. ...
by Paul Barker
Tue Apr 09, 2024 2:18 pm
Forum: Everyones Projects
Topic: PSE EL84 Amplifier
Replies: 43
Views: 1265

Re: PSE EL84 Amplifier

Sent pm instead maybe you changed phone?
by Paul Barker
Tue Apr 09, 2024 2:10 pm
Forum: Everyones Projects
Topic: EL34 SE
Replies: 6
Views: 282

EL34 SE

So the amp I listen to is EL34 SE. The Variac has become unreliable. So Ive made it 117v permanently. Through the power supply that gives 317v b+ which draws 21v bias. Running hotter current 82mA. B+ 300v. This isnt a bad compromise . For this amp it becomes 3 watts, but its cleaner lower distortion...
by Paul Barker
Tue Apr 09, 2024 1:09 pm
Forum: Everyones Projects
Topic: PSE EL84 Amplifier
Replies: 43
Views: 1265

Re: PSE EL84 Amplifier

Ive sent address in text to number ending 752
by Paul Barker
Tue Apr 09, 2024 7:28 am
Forum: Everyones Projects
Topic: PSE EL84 Amplifier
Replies: 43
Views: 1265

Re: PSE EL84 Amplifier

Yes please Steve.
by Paul Barker
Mon Apr 08, 2024 8:30 pm
Forum: Everyones Projects
Topic: PSE EL84 Amplifier
Replies: 43
Views: 1265

Re: PSE EL84 Amplifier

OK Ive ordered two of the EL36’s from Langex for £25 delivered . So those are going into the EL34 SE amplifier. The EL821’s and EL822’s are going in a new push pull amp. (The 1’s are shorter stature but mostly close) So I’ll have two amps at home with Mullard bottles in a SE and a push pull. Its goi...
by Paul Barker
Mon Apr 08, 2024 5:13 pm
Forum: Everyones Projects
Topic: PSE EL84 Amplifier
Replies: 43
Views: 1265

Re: PSE EL84 Amplifier

I’ve found a cheaper EL12 alternative, EL36 with a top cap anode.

Good looking triode curves, class A se into 4k 4.5 watts 375v 50mA

Image

Image

Image
by Paul Barker
Mon Apr 08, 2024 3:39 pm
Forum: Everyones Projects
Topic: PSE EL84 Amplifier
Replies: 43
Views: 1265

Re: PSE EL84 Amplifier

These arrived, dont seem used at all.

Image
by Paul Barker
Mon Apr 08, 2024 2:15 pm
Forum: Everyones Projects
Topic: PSE EL84 Amplifier
Replies: 43
Views: 1265

Re: PSE EL84 Amplifier

Anyway making amps that I want to make keeps me happy and Roxy my best friend. Trimming my nails. Image
by Paul Barker
Mon Apr 08, 2024 12:26 pm
Forum: Everyones Projects
Topic: PSE EL84 Amplifier
Replies: 43
Views: 1265

Re: PSE EL84 Amplifier

Diana was wrong they havent awarded her pip her disability isnt enough. She’s only barking mad and demented. My mate has been offered 40k basis for the manager of his old firm that was liquidated. But I cant apply because Id find Diana dead when I got home one day, and probably the house burned down...
by Paul Barker
Mon Apr 08, 2024 10:56 am
Forum: Everyones Projects
Topic: PSE EL84 Amplifier
Replies: 43
Views: 1265

Re: PSE EL84 Amplifier

A bit of 2nd dominance at the driver and a bit of distortion cancellation at the output. Should blend good. Mullards for less than Chinese or Russian. https://i.postimg.cc/QxB2fDH9/IMG-9224.png img post Should look better. https://i.postimg.cc/vZJpKmWB/IMG-9225.jpg https://i.postimg.cc/zvGMhH1d/IMG-...
by Paul Barker
Mon Apr 08, 2024 10:53 am
Forum: Everyones Projects
Topic: PSE EL84 Amplifier
Replies: 43
Views: 1265

Re: PSE EL84 Amplifier

Ive just walked to Eastfield with my new top plate. R & R engineering kindly guillotined it for me. Fukc diving into the GM70 project. Ive change tack again, consudering Mikes fears and considering my past experience. Im makling the four Mullard EL822’s as push pull output on a ccs tail with a b...
by Paul Barker
Sat Apr 06, 2024 6:58 pm
Forum: Everyones Projects
Topic: PSE EL84 Amplifier
Replies: 43
Views: 1265

Re: PSE EL84 Amplifier

Great to hear, I can do 6 watt with a 630 volt power supply. But I dont really think its worth building at all for just that. So I’ll wait until Ive built it for proper voltages. As I have a 6 watt amp.
by Paul Barker
Sat Apr 06, 2024 11:38 am
Forum: Everyones Projects
Topic: PSE EL84 Amplifier
Replies: 43
Views: 1265

Re: PSE EL84 Amplifier

On the bright side Ive found out where you get youre 500x500 sheet of stainless guillotined in Scarborough. I’ll go there on the bus when theyre next open; Monday. But a word to the wise, just buy another Hammond Chassis next time, it will be cheaper in the long run, and as you should be downsizing ...
by Paul Barker
Sat Apr 06, 2024 11:28 am
Forum: Everyones Projects
Topic: PSE EL84 Amplifier
Replies: 43
Views: 1265

Re: PSE EL84 Amplifier

It may be already too late, but before going wild camping I’ll be found trying to sell my valuanle audio stuff at whatever the National Vintage Radio Fair has become by then. I’ll have to give it all up when Im wild camping. Or I may be found on a canal in a 72ft converted barge, or a boat in the ha...